Another SQL tutorial webiste
Once you are done with W3Schools, you can move on to a site liket http://www.sql-tutorial.net/.
Aquí está la información de tu cuenta.
W3Schools.com has taught me the rudimentaries of many different languages and technologies. Here's how they describe their "up and running" online tutorial for SQL:
"SQL is a standard language for accessing databases.Our SQL tutorial will teach you how to use SQL to access and manipulate data in:
MySQL, SQL Server, Access, Oracle, Sybase, DB2, and other database systems."